An overview of the underwater search and salvage process based on ROV

Abstract

With the rapid development of underwater robotics technology, underwater search and salvage develops in a fine operation way.This article divides the search and salvage process into four stages: large area acoustic scanning and suspected point marking, bottom acoustic imaging and suspected point identifying, sit-onbottom acoustic precise positioning and marker releasing, and goal close observation and hook salvage/submarine trenchless pulling wire rope engineering and salvage.This article reviews the methods of search and salvage, the need for search and salvage tools and vehicles, and typical successful cases at home and abroad in each stage.